water color painting: aqua flower

I was planning to have more black on this watercolor, but I like the way it turned out. Sometimes, what comes out looks much better than what I had in my head. I like blue, yet it sometimes hard to use blue with only few other colors. It's get either too cheesy, or tasteless. I wanted to use only black and blue, but decided to use different blue plus touch of violet. I like the nuance of the different blue in this.